"When beggars die, there are no comets seen;
The heavens themselves blaze forth the death of princes."

— William Shakespeare
Julius Cæsar

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Fig trees may benefit climate by turning carbon dioxide into stone

New Scientist Space - Space Headlines - Sat, 07/05/2025 - 8:01pm
Some carbon dioxide absorbed by fig trees gets turned into calcium carbonate within the wood and the surrounding soil, ensuring that the carbon is kept out of the air for longer
Categories: Astronomy

Fig trees may benefit climate by turning carbon dioxide into stone

New Scientist Space - Cosmology - Sat, 07/05/2025 - 8:01pm
Some carbon dioxide absorbed by fig trees gets turned into calcium carbonate within the wood and the surrounding soil, ensuring that the carbon is kept out of the air for longer
Categories: Astronomy

<p><a href="https://apod.nasa.gov/apod

APOD - Sat, 07/05/2025 - 4:00pm

Face-on spiral galaxy NGC 6946 and open star cluster NGC 6939 share


Categories: Astronomy, NASA

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APOD - Sat, 07/05/2025 - 4:00pm

If you know where to look, you can see a thermonuclear explosion from a white dwarf star.


Categories: Astronomy, NASA

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APOD - Sat, 07/05/2025 - 4:00pm

Does the Milky Way always rise between these two rocks?


Categories: Astronomy, NASA

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APOD - Sat, 07/05/2025 - 4:00pm

What do you see when you look into this sky?


Categories: Astronomy, NASA

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APOD - Sat, 07/05/2025 - 4:00pm

It's raining stars.


Categories: Astronomy, NASA

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APOD - Sat, 07/05/2025 - 4:00pm

Are these trees growing on Mars?


Categories: Astronomy, NASA

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APOD - Sat, 07/05/2025 - 4:00pm


Categories: Astronomy, NASA

'Humanity’s time is over!’ Apple TV+ drops release date and intense first teaser for 'Invasion' Season 3

Space.com - Sat, 07/05/2025 - 12:00pm
A scene from Apple TV+'s "Invasion" Season 3
Categories: Astronomy

For 100 years, we have marveled at planetariums. Here's a brief history of how humans brought the stars indoors

Space.com - Sat, 07/05/2025 - 11:00am
Humans have used the stars to navigate, keep time, and understand our place in the universe.
Categories: Astronomy

Devour a cosmic-sized chunk of Marvel lore ahead of 'The Fantastic Four: First Steps', with the 'The Coming of Galactus' novel

Space.com - Sat, 07/05/2025 - 11:00am
Titan Books' new novelization of Stan Lee and Jack Kirby's 'Galactus Trilogy' heralds the coming of July’s 'Fantastic Four' blockbuster.
Categories: Astronomy

Rare snowfall in Atacama Desert forces the world's most powerful radio telescope into 'survival mode'

Space.com - Sat, 07/05/2025 - 10:00am
The ALMA radio telescope array in the Atacama Desert temporarily halted operations after a rare snowfall blanketed the base camp last week.
Categories: Astronomy

A 'Golden Handle' will appear on the moon tonight. Here's how to see it

Space.com - Sat, 07/05/2025 - 6:00am
The "Golden Handle" appears each month when the sun illuminates a mountain range lining a vast impact crater.
Categories: Astronomy

Will YR4 Hit the Moon? We Won't Know Until 2028

Universe Today - Fri, 07/04/2025 - 10:13pm

Earlier this year, asteroid 2024 YR4 was discovered and found to have a trajectory through the Earth/Moon system in 2032. The world's telescopes focused on the potential threat and downgraded the chance to negligible for the Earth...but it still has a non-zero chance of hitting the Moon. As the asteroid became too dim to continue observing, its Moon impact chance stood at 4%. When will we update this number? Not until it does another close flyby in 2028.

Categories: Astronomy

Old Hubble Space Telescope Photos Unlock the Secret of a Rogue Planet

Universe Today - Fri, 07/04/2025 - 10:13pm

Astronomers have made a breakthrough by using 25 year old Hubble images to investigate a potential "rogue planet" drifting through space without a host star. When a brief gravitational microlensing event occurred in 2023, researchers discovered Hubble had photographed the same location in 1997, creating an unprecedented quarter century baseline. Finding no stellar companion in the archival data strengthened evidence for a rogue planet with mass between Earth and Saturn, demonstrating the scientific value of space telescope archives for studying these elusive worlds wandering the Galaxy alone.

Categories: Astronomy

Machine Learning is Surprisingly Good at Simulating the Universe

Universe Today - Fri, 07/04/2025 - 10:13pm

Some of the most powerful supercomputers in the world are designed to simulate complex astrophysical processes, like what's happening inside a giant star as it's going supernova. But researchers have developed a new machine learning algorithm that was able to accurately simulate galaxy evolution with fewer computer resources and dramatically more quickly than a supercomputer, which could take years to fully process.

Categories: Astronomy

If Dark Energy is Decreasing, is the Big Crunch Back on the Menu?

Universe Today - Fri, 07/04/2025 - 10:13pm

Astronomers once wondered if the Universe might one day collapse in on itself in a Big Crunch, but the discovery of dark energy suggested that the expansion of the Universe would accelerate, removing that possibility. New data from the Dark Energy Spectroscopic Instrument suggests that dark energy might be changing in strength over time, maybe even going negative. If that result holds, are we due for a Big Crunch? And how long would it take?

Categories: Astronomy

High-Speed Gas Clouds Fuel Star Formation in Depleted Galaxies

Universe Today - Fri, 07/04/2025 - 10:13pm

How do galaxies like ours continue producing stars long after they should have used up their star-forming gas. Somehow, an external gas source must find its way into the galaxy. New research has found evidence of gas clouds that found their way into a spiral galaxy, likely fueling continued star formation.

Categories: Astronomy